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对γ射线辐照的较大浓度ＡｇＮＯ３水溶液中的吸收光谱进行了研究，观察到寿命长达１个月以上的银原子团簇。讨论了实验条件对银原子团簇和胶体银的形成和稳定性的影响。
The absorption spectra of AgNO3 aqueous solution irradiated by γ-rays were studied. Silver clusters with a lifetime of more than 1 month were observed. The effects of experimental conditions on the formation and stability of silver clusters and colloidal silver were discussed.